Definition
A fundamental is a core concept or principle within a technology domain that forms the basis for more advanced knowledge and skills. These concepts are the building blocks that enable professionals to understand, design, and troubleshoot complex systems. In practice, fundamentals are applied daily to make informed decisions about system architecture, security, and operational efficiency. Understanding fundamentals is crucial for effectively communicating technical ideas and justifying design choices to stakeholders. For instance, the concept of the OSI model is a fundamental in networking, providing a framework for understanding data transmission. This differs from a specific protocol, which is an implementation of those fundamental principles. Fundamentals are foundational to many IT certifications, including CompTIA Network+ and AWS Certified Solutions Architect Associate.